mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-12-22 17:45:48 -05:00
DATV demod: updated documentation
This commit is contained in:
parent
ca88a3a42e
commit
929bd81679
Binary file not shown.
Before Width: | Height: | Size: 91 KiB After Width: | Height: | Size: 142 KiB |
Binary file not shown.
@ -6,11 +6,11 @@
|
||||
- libavcodec-dev
|
||||
- libavformat-dev
|
||||
|
||||
[LeanSDR](https://github.com/pabr/leansdr) framework from F4DAV is intensively used. It has been integrated in the source tree and modified to suit SDRangel specific needs.
|
||||
[LeanSDR](https://github.com/pabr/leansdr) framework from F4DAV is intensively used. It has been integrated in the source tree and modified to suit SDRangel specific needs.
|
||||
|
||||
<h2>Introduction</h2>
|
||||
|
||||
This plugin can be used to view digital amateur analog television transmissions a.k.a DATV. The only supported standard for now is DVB-S in various modulations. The standard modulation is QPSK but experimental configurations with other PSK modulations (BPSK, 8PSK, QAMn) can be selected.
|
||||
This plugin can be used to view digital amateur analog television transmissions a.k.a DATV. The only supported standard for now is DVB-S in various modulations. The standard modulation is QPSK but experimental configurations with other PSK modulations (BPSK, 8PSK, QAMn) can be selected.
|
||||
|
||||
The whole bandwidth available to the channel is used. That is it runs at the device sample rate possibly downsampled by a power of two in the source plugin.
|
||||
|
||||
@ -60,8 +60,8 @@ For now only the DVB-S standard is available
|
||||
- APSK64e: amplitude and phase shift keying with 64 symbols
|
||||
- QAM16: quadrature amplitude modulation with 16 symbols
|
||||
- QAM64: quadrature amplitude modulation with 64 symbols
|
||||
- QAM256: quadrature amplitude modulation with 256 symbols
|
||||
|
||||
- QAM256: quadrature amplitude modulation with 256 symbols
|
||||
|
||||
<h5>B.2a.3: Symbol rate</h5>
|
||||
|
||||
This controls the expected symbol rate
|
||||
@ -114,13 +114,13 @@ Gauge that shows percentage of buffer queue length
|
||||
|
||||
![DATV Demodulator plugin video GUI](../../../doc/img/DATVDemod_pluginVideo.png)
|
||||
|
||||
<h5>B.2b.1: Image thumbnail</h4>
|
||||
<h5>B.2b.1: Image</h5>
|
||||
|
||||
Use full screen button (5) to switch to full screen video
|
||||
The decoded video is displayed here
|
||||
|
||||
<h5>B.2b.2: Stream information</h4>
|
||||
<h5>B.2b.2: Stream information</h5>
|
||||
|
||||
<h5>B.2b.3: Stream decoding status</h4>
|
||||
<h5>B.2b.3: Stream decoding status</h5>
|
||||
|
||||
These non clickable checkboxes report the decoding status (checked when OK):
|
||||
|
||||
@ -128,9 +128,30 @@ These non clickable checkboxes report the decoding status (checked when OK):
|
||||
- transport: transport stream detected
|
||||
- video: video data detected
|
||||
- decoding: video being decoded
|
||||
|
||||
<h5>B.2b.4: Play/pause video playback</h4>
|
||||
|
||||
<h5>B.2b.4: Full screen mode</h4>
|
||||
|
||||
Click on this button to see video in full screen mode then click anywhere on the screen to exit full screen mode
|
||||
<h5>B.2b.4: Video mute</h5>
|
||||
|
||||
Toggle button to pause/run video decoding. This also indicates the video status:
|
||||
|
||||
- Grey (no color): there is no video stream
|
||||
- Green: a video stream is present and successfully decoded
|
||||
- Red: a video stream is present but decoding fails
|
||||
|
||||
<h5>B.2b.5: Audio mute</h5>
|
||||
|
||||
Toggle button to pause/run audio decoding. This also indicates the audio status:
|
||||
|
||||
- Grey (no color): there is no audio stream
|
||||
- Green: an audio stream is present and successfully decoded
|
||||
- Red: an audio stream is present but decoding fails
|
||||
|
||||
In addition right clicking on the button will give you access to the audio device selection dialog
|
||||
|
||||
<h5>B.2b.6: Audio volume</h5>
|
||||
|
||||
Show the audio volume on a 0 to 100 scale. The actual coefficient applied to the audio samples follows a logarithmic rule where 0 corresponds to 0.01, 50 to 0.1 and 100 to 1.0
|
||||
|
||||
<h5>B.2b.7: Audio volume control</h5>
|
||||
|
||||
Use this slider to control the value (0 to 100) of the audio volume.
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user